I get what you're saying. Trimming may produce ammunition that may be capable of more precision under certain conditions...like using a machine rest. What I'm saying is that A. Once a person gets behind the gun the person is now the biggest factor, and B. All that effort will have been for almost no real gain as a result.

I don't doubt that you've experienced better precision after uniforming your brass and while shooting your gun from a machine rest. But its just a waste of time for what you'll gain, IMO.

But those are two different factors. Better ammo makes for better shooting. A better shooter makes for better shooting. Both together is even better.

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Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passions, they cannot alter the state of facts and evidence.